Fly-half Ben Botica only played the first half but his 15 points set Aviva Premiership leaders Harlequins on the way to a 21-12 victory over Bath in the LV= Cup.

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The 23-year-old son of former Wigan and Castleford rugby league star Frano Botica kicked five penalties from five attempts for Quins. Replacement centre Louis Grimoldby added two second-half penalties to kill off a fightback by Bath, who had been comprehensively outplayed in the first period.

Former All Blacks fly-half Stephen Donald kicked three penalties for the visitors, with his replacement Tom Heathcote kicking one.

But their cause was not helped by the sin-binning of prop Anthony Perinese in the first half and replacement hooker Brett Sharman in the second.